Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap nang du snippets" » "phap nang tu snippets", "phap nang luc snippets", "phap nang doc snippets", "phan nang du snippets", "pham nang du snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phap nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap nang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap nang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.